Page 1 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04 FL (Four Lock) Port System Charts PORT OPTIONS Some lenses have more than one port option. The first column is always the recommended option for the best compromise of imaging quality, performance, and handling with any given lens. PRODUCT(S) REQUIRED Where multiple lines of products are listed for a given option, all products listed are required to make a complete compatible lens port. LENSES REFERENCING “+4 DIOPTER REQUIRED” A +4 diopter is available for purchase through your local camera store, and is commonly sold in a set with +1 and +2 closeup lenses. Common brands include Tiffen and Hoya. Make sure to purchase the correct size for your lens. The thread diameter is usually referenced on the front of the lens in millimeters (ø 58mm, 67mm, etc.). All photos will be out of focus if a +4 diopter is required but not used. MEASURING FOR A PORT Using an accurate method of measurement, preferably digital calipers, measure the lens diameter at its largest point. The lens barrel must be less than 3.3” (83mm) at its largest point to fit in FL system ports. The zoom ring must be 3” diameter or smaller for use with our universal zoom gear system. Lens specifications posted by the manufacturer generally are not suitable for determining the correct port. If the lens extends when zooming or focusing, extend the lens to the longest point before measuring. Measure the fully extended length of the lens from the mount on the camera body. A dome is recommended for zoom lenses and all lenses 28mm or wider. A lens must focus to 12” or closer to be used underwater behind a dome. If your lens does not focus to at least 12”, then a +4 diopter must be added to the front of the lens and included in the overall length measurement. Flat ports are recommended for macro and telephoto lenses. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette at infinity behind a flat port.
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Port Charts for Ikelite DSLR-type Housings Using these charts
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Page 1 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
FL (Four Lock) Port System Charts PORT OPTIONS
Some lenses have more than one port option. The first column is always the recommended option for the best compromise of imaging quality, performance, and handling with any given lens.
PRODUCT(S) REQUIRED
Where multiple lines of products are listed for a given option, all products listed are required to make a complete compatible lens port.
LENSES REFERENCING “+4 DIOPTER REQUIRED”
A +4 diopter is available for purchase through your local camera store, and is commonly sold in a set with +1 and +2 close-up lenses. Common brands include Tiffen and Hoya. Make sure to purchase the correct size for your lens. The thread diameter is usually referenced on the front of the lens in millimeters (ø 58mm, 67mm, etc.). All photos will be out of focus if a +4 diopter is required but not used.
MEASURING FOR A PORT
Using an accurate method of measurement, preferably digital calipers, measure the lens diameter at its largest point. The lens barrel must be less than 3.3” (83mm) at its largest point to fit in FL system ports. The zoom ring must be 3” diameter or smaller for use with our universal zoom gear system. Lens specifications posted by the manufacturer generally are not suitable for determining the correct port. If the lens extends when zooming or focusing, extend the lens to the longest point before measuring. Measure the fully extended length of the lens from the mount on the camera body. A dome is recommended for zoom lenses and all lenses 28mm or wider. A lens must focus to 12” or closer to be used underwater behind a dome. If your lens does not focus to at least 12”, then a +4 diopter must be added to the front of the lens and included in the overall length measurement. Flat ports are recommended for macro and telephoto lenses. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette at infinity behind a flat port.
Page 2 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
Canon Lenses
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 8-15 mm f/4L EF USM Fisheye Dome shade must be removed to eliminate vignetting. AF only. Product(s) required:
5510.45 Dome 5510.11 Extension 5509.28 Zoom Gear
Canon 10-18 mm f/4.5-5.6 IS STM AF only. Product(s) required:
5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.27 Zoom Gear
Canon 10-22 mm f/3.5-4.5 EF-S USM AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.28 Zoom Gear
Canon 11-24 mm f/4L USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 14 mm EF 1:2.8 AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Canon 14 mm EF f/2.8L II USM AF only. Product(s) required:
5510.45 Dome 5510.22 Extension
Canon 15 mm EF f/2.8 Fisheye AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Page 3 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 15-85 mm f/3.5-5.6 IS USM Macro
Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 16-35 mm USM AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear
Canon 16-35 mm f/2.8L II USM Canon 16-35 mm f/2.8L III USM
Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 16-35 mm f/4L EF IS USM AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear 0923.01 Anti-Reflection Ring
Canon 17-35 mm AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.28 Zoom Gear
Canon 17-40 mm f/4L EF USM AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear 0923.02 Anti-Reflection Ring
Canon 17-55 mm 1:2.8 EF-S IS USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Page 4 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 17-85 mm f4-5.6 EF-S IS USM No zoom control. Lens must be used at a fixed focal length. AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.24 Extension
Canon 18-55 mm EF-S USM Canon 18-55 mm f/3.5-5.6 EF-S IS Canon 18-55 mm f/3.5-5.6 EF-S IS II Canon 18-55 mm f/3.5-5.6 IS STM
AF only. Product(s) required:
5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Canon 18-135 mm f/3.5-5.6 EF-S IS Recommended only for use with Four Lock housings. AF only. Product(s) required:
Canon 18-200 mm f/3.5-5.6 EF-S IS Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 20 mm f/2.8 USM AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Page 5 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 20-35 mm AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Canon 20-35 mm Ultrasonic Canon 22-55 mm Ultrasonic
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Canon 24 mm f/2.8 AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Canon 24 mm f/1.4L USM Canon 24 mm f/1.4L II USM
AF only. Product(s) required:
5510.45 Dome 5510.16 Extension
Canon 24-70 mm f/2.8L EF USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 24-70 mm f/4L IS USM Lens macro switch is not accessible. AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.21 Zoom Gear
Canon 24-85 mm
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Page 6 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 24-105 mm f/4L EF IS USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 28 mm AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Canon 28-70 mm Canon 28-90 mm EF
Compatibility information not available.
Canon 28-105 mm 1:3.5-4.5 EF USM II
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear
Canon 28-105 mm 1:4-5.6 USM
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.28 Zoom Gear
Canon 28-135 mm f/3.5-5.6 IS USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 35 mm f/1.4L USM
Full angle of coverage. Necessary for split shots (half-in, half-out of the water). AF only. Product(s) required:
5510.45 Dome 5510.22 Extension
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.22 Extension
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.24 Extension
Page 7 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 35 mm f/2 Canon 35 mm f/2 IS USM
Full angle of coverage. Necessary for split shots (half-in, half-out of the water). AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.16 Extension
Canon 35-80 mm
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.16 Extension 5509.27 Zoom Gear
Canon 35-135 mm
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.24 Extension
Canon 40 mm f/2.8 EF Canon 40 mm f/2.8 EF STM
Full angle of coverage. Necessary for split shots (half-in, half-out of the water). AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.16 Extension
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.24 Extension
Canon 50 mm f/1.2L USM Lens diameter is too large to operate in FL port system. DL port system recommended.
Canon 50 mm f/1.4 USM Canon 50 mm f/1.8 II
Sharp image quality, reduced angle of coverage. AF only. Product(s) required:
5510.35 Flat Front 5510.16 Extension
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.11 Extension
Page 8 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Canon 50 mm f/2.5 Compact Macro AF only. Product(s) required:
5510.35 Flat Front 5510.22 Extension
Canon 60 mm f/2.8 EF-S Macro AF only. Product(s) required:
5510.35 Flat Front 5510.16 Extension
AF only. Product(s) required:
5510.35 Flat Front 5510.22 Extension
AF only. Product(s) required:
5510.35 Flat Front 5510.24 Extension
Canon 100 mm Macro AF only. Product(s) required:
5510.35 Flat Front 5510.58 Extension 5510.22 Extension
AF only. Product(s) required:
5510.35 Flat Front 5510.58 Extension 5510.24 Extension
Canon 100 mm f/2.8 EF Macro
AF only. Product(s) required:
5510.35 Flat Front 5510.54 Extension 5510.28 Extension
Canon 100 mm f/2.8 EF USM Macro (non-IS) Canon 100 mm f/2.8L EF IS USM Macro
AF only. Product(s) required:
5510.35 Flat Front 5510.28 Extension
AF or MF (cannot switch underwater). Product(s) required:
5510.35 Flat Front 5510.75 Extension 5510.16 Extension
Page 9 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
Nikon Lenses
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Nikon 8-15 mm f/3.5-4.5E ED AF-S Fisheye
Dome shade must be removed to eliminate vignetting. AF only. Product(s) required:
5510.45 Dome 5510.11 Extension 5509.28 Zoom Gear
Nikon 10-24 mm f/3.5-4.5G ED AF-S DX
Adding a +2 diopter to the lens may improve edge sharpness. AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.27 Zoom Gear
Nikon 10.5 mm f/2.8G ED AF DX Fisheye
AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Nikon 10-20 mm f/4.5-5.6G VR AF-P DX
Recommended for optimum placement of lens in relation to dome, which provides better image sharpness particularly in the corners of the frame. AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear
AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.28 Zoom Gear
Extension # 5510.11 could alternatively be used but image sharpness will suffer. AF only. Product(s) required:
5510.45 Dome 5510.16 Extension 5509.28 Zoom Gear
Nikon 12-24 mm f/4 IF-ED AF-S DX
AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.28 Zoom Gear
Page 10 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Nikon 14 mm f/2.8D ED Nikon 14-24 mm f/2.8G ED AF-S
Lens diameter is too large to operate in FL port system. DL port system recommended.
Nikon 16 mm f/2.8D AF Fisheye AF only. Product(s) required:
5510.45 Dome 5510.11 Extension
Nikon 16-35 mm f/4G ED VR AF-S
AF only. Product(s) required:
5510.45 Dome 5510.28 Extension 5509.27 Zoom Gear
Nikon 16-80 mm f/2.8-4E ED VR AF-S DX
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.24 Extension 5509.16 Zoom Gear
Nikon 16-85 mm f/3.5-5.6G ED VR AF-S DX
AF only. Product(s) required:
5510.45 Dome 5510.28 Extension 5509.28 Zoom Gear
Nikon 17-35 mm f/2.8D IF-ED AF-S
AF only. Product(s) required:
5510.45 Dome 5510.24 Extension 5509.17 Zoom Gear
Nikon 17-55 mm f/2.8D IF-ED AF-S DX
Lens diameter is too large to operate in FL port system. DL port system recommended.
Page 11 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Nikon 18 mm D AF only. Product(s) required:
5510.45 Dome 5510.16 Extension
Nikon 18-35 mm f/3.5-4.5D IF-ED AF Port recommendation not available. Measure lens to select correct port extension.
Nikon 18-35 mm f/3.5-4.5G ED
AF only. Product(s) required:
5510.45 Dome 5510.22 Extension 5509.28 Zoom Gear
Nikon 18-55 mm f/3.5-5.6 ED AF-S DX
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.16 Extension 5509.28 Zoom Gear
Nikon 18-55 mm f/3.5-5.6G ED II AF-S DX Nikon 18-55 mm f/3.5-5.6G VR AF-S DX
AF only. Product(s) required:
5510.45 Dome 5510.16 Extension 5509.28 Zoom Gear
Nikon 18-55mm f/3.5-5.6 VR II AF-S DX
AF only. Product(s) required:
5510.45 Dome 5510.16 Extension 5509.27 Zoom Gear
Nikon 18-70 mm f/3.5-4.5G IF-ED AF-S DX
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.24 Extension 5509.28 Zoom Gear
Page 12 of 26 FL (Four Lock) Port System Charts Rev. 2018.02.04
OPTION 1 (Recommended)
OPTION 2 OPTION 3
Nikon 18-105 mm f/3.5-5.6G ED VR AF-S DX
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.28 Extension 5509.18 Zoom Gear
Nikon 18-135 mm f/3.5-5.6G ED AF-S DX
AF only. Product(s) required:
+4 Diopter Required 5510.45 Dome 5510.28 Extension 5509.28 Zoom Gear
Nikon 18-140 mm f/3.5-5.6G ED VR
May vignette slightly at widest focal lengths. Recommended only for use with Four Lock housings. AF only. Product(s) required: